ShaderBlock:isWritable;

src/api/types/shaderBlock.c

@@ -8,6 +8,12 @@ int l_lovrShaderBlockGetSize(lua_State* L) {
   return 1;
 }
 
+int l_lovrShaderBlockIsWritable(lua_State* L) {
+  ShaderBlock* block = luax_checktype(L, 1, ShaderBlock);
+  lua_pushboolean(L, lovrShaderBlockGetType(block) == BLOCK_STORAGE);
+  return 1;
+}
+
 int l_lovrShaderBlockSend(lua_State* L) {
   ShaderBlock* block = luax_checktype(L, 1, ShaderBlock);
   const char* name = luaL_checkstring(L, 2);
@@ -20,6 +26,7 @@ int l_lovrShaderBlockSend(lua_State* L) {
 
 const luaL_Reg lovrShaderBlock[] = {
   { "getSize", l_lovrShaderBlockGetSize },
+  { "isWritable", l_lovrShaderBlockIsWritable },
   { "send", l_lovrShaderBlockSend },
   { NULL, NULL }
 };

src/graphics/opengl.c

@@ -1700,6 +1700,10 @@ size_t lovrShaderBlockGetSize(ShaderBlock* block) {
   return block->size;
 }
 
+BlockType lovrShaderBlockGetType(ShaderBlock* block) {
+  return block->type;
+}
+
 const Uniform* lovrShaderBlockGetUniform(ShaderBlock* block, const char* name) {
   int* index = map_get(&block->uniformMap, name);
   if (!index) return NULL;

src/graphics/shader.h

@@ -75,6 +75,7 @@ void lovrShaderSetBlock(Shader* shader, const char* name, ShaderBlock* block);
 ShaderBlock* lovrShaderBlockCreate(vec_uniform_t* uniforms, BlockType type, BufferUsage usage);
 void lovrShaderBlockDestroy(void* ref);
 size_t lovrShaderBlockGetSize(ShaderBlock* block);
+BlockType lovrShaderBlockGetType(ShaderBlock* block);
 const Uniform* lovrShaderBlockGetUniform(ShaderBlock* block, const char* name);
 void* lovrShaderBlockMap(ShaderBlock* block);
 void lovrShaderBlockUnmap(ShaderBlock* block);